21200323032112 has 20 divisors (see below), whose sum is σ = 46943572428496. Its totient is φ = 9085852728000.

The previous prime is 21200323032071. The next prime is 21200323032131. The reversal of 21200323032112 is 21123032300212.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94644299139 + ... + 94644299362.

Almost surely, 2^{21200323032112} is an apocalyptic number.

It is an amenable number.

21200323032112 is an abundant number, since it is smaller than the sum of its proper divisors (25743249396384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21200323032112 is a wasteful number, since it uses less digits than its factorization.

21200323032112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189288598516 (or 189288598510 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21200323032112 its reverse (21123032300212), we get a palindrome (42323355332324).

The spelling of 21200323032112 in words is "twenty-one trillion, two hundred billion, three hundred twenty-three million, thirty-two thousand, one hundred twelve".